java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-programs/Problem101_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 23:38:49,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 23:38:49,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 23:38:49,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 23:38:49,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 23:38:49,350 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 23:38:49,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 23:38:49,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 23:38:49,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 23:38:49,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 23:38:49,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 23:38:49,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 23:38:49,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 23:38:49,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 23:38:49,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 23:38:49,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 23:38:49,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 23:38:49,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 23:38:49,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 23:38:49,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 23:38:49,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 23:38:49,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 23:38:49,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 23:38:49,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 23:38:49,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-07 23:38:49,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-07 23:38:49,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-07 23:38:49,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-07 23:38:49,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-07 23:38:49,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-07 23:38:49,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 23:38:49,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 23:38:49,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 23:38:49,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 23:38:49,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 23:38:49,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 23:38:49,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 23:38:49,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 23:38:49,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 23:38:49,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 23:38:49,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 23:38:49,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 23:38:49,417 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 23:38:49,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 23:38:49,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 23:38:49,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 23:38:49,421 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 23:38:49,421 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 23:38:49,421 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 23:38:49,421 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 23:38:49,421 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 23:38:49,421 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 23:38:49,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 23:38:49,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 23:38:49,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 23:38:49,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 23:38:49,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 23:38:49,424 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 23:38:49,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 23:38:49,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 23:38:49,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 23:38:49,425 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 23:38:49,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 23:38:49,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 23:38:49,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 23:38:49,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 23:38:49,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 23:38:49,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 23:38:49,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 23:38:49,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 23:38:49,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 23:38:49,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 23:38:49,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 23:38:49,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 23:38:49,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 23:38:49,494 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 23:38:49,495 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-programs/Problem101_label04.c [2019-09-07 23:38:49,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4375c7640/f40d0bb4601440a3aa9075b68a504ff0/FLAGf5f5cba6e [2019-09-07 23:38:51,712 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 23:38:51,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-programs/Problem101_label04.c [2019-09-07 23:38:51,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4375c7640/f40d0bb4601440a3aa9075b68a504ff0/FLAGf5f5cba6e [2019-09-07 23:38:51,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4375c7640/f40d0bb4601440a3aa9075b68a504ff0 [2019-09-07 23:38:51,895 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 23:38:51,897 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 23:38:51,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 23:38:51,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 23:38:51,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 23:38:51,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:38:51" (1/1) ... [2019-09-07 23:38:51,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@624e1260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:38:51, skipping insertion in model container [2019-09-07 23:38:51,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 11:38:51" (1/1) ... [2019-09-07 23:38:51,914 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 23:38:52,953 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 23:39:04,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:39:04,327 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 23:39:14,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 23:39:15,304 INFO L192 MainTranslator]: Completed translation [2019-09-07 23:39:15,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15 WrapperNode [2019-09-07 23:39:15,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 23:39:15,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 23:39:15,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 23:39:15,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 23:39:15,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:15,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:15,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:15,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:16,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:16,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:17,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... [2019-09-07 23:39:17,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 23:39:17,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 23:39:17,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 23:39:17,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 23:39:17,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 23:39:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 23:39:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 23:39:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-07 23:39:18,309 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-07 23:39:18,310 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2019-09-07 23:39:18,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2019-09-07 23:39:18,312 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2019-09-07 23:39:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2019-09-07 23:39:18,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2019-09-07 23:39:18,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2019-09-07 23:39:18,315 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2019-09-07 23:39:18,319 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2019-09-07 23:39:18,320 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2019-09-07 23:39:18,321 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2019-09-07 23:39:18,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2019-09-07 23:39:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2019-09-07 23:39:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2019-09-07 23:39:18,323 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2019-09-07 23:39:18,324 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2019-09-07 23:39:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2019-09-07 23:39:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2019-09-07 23:39:18,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 23:39:18,325 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2019-09-07 23:39:18,326 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2019-09-07 23:39:18,327 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2019-09-07 23:39:18,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2019-09-07 23:39:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2019-09-07 23:39:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2019-09-07 23:39:18,329 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2019-09-07 23:39:18,331 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2019-09-07 23:39:18,332 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2019-09-07 23:39:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2019-09-07 23:39:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2019-09-07 23:39:18,334 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2019-09-07 23:39:18,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 23:39:18,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-07 23:39:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-07 23:39:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 23:39:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 23:39:18,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 23:40:06,204 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 23:40:06,204 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-07 23:40:06,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:40:06 BoogieIcfgContainer [2019-09-07 23:40:06,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 23:40:06,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 23:40:06,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 23:40:06,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 23:40:06,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 11:38:51" (1/3) ... [2019-09-07 23:40:06,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7345add6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:40:06, skipping insertion in model container [2019-09-07 23:40:06,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 11:39:15" (2/3) ... [2019-09-07 23:40:06,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7345add6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 11:40:06, skipping insertion in model container [2019-09-07 23:40:06,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 11:40:06" (3/3) ... [2019-09-07 23:40:06,218 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem101_label04.c [2019-09-07 23:40:06,228 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 23:40:06,241 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 23:40:06,260 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 23:40:06,333 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 23:40:06,334 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 23:40:06,334 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 23:40:06,335 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 23:40:06,335 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 23:40:06,335 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 23:40:06,335 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 23:40:06,335 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 23:40:06,335 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 23:40:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 10446 states. [2019-09-07 23:40:07,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10193 [2019-09-07 23:40:07,989 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:40:07,997 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:40:08,001 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:40:08,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:40:08,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1581886890, now seen corresponding path program 1 times [2019-09-07 23:40:08,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:40:08,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:40:08,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:40:08,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:40:08,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:40:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:41:41,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:41:41,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:41:41,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-07 23:41:41,316 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-07 23:41:41,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-07 23:41:41,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 23:41:41,335 INFO L87 Difference]: Start difference. First operand 10446 states. Second operand 3 states. [2019-09-07 23:42:38,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:42:38,452 INFO L93 Difference]: Finished difference Result 31264 states and 61877 transitions. [2019-09-07 23:42:38,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-07 23:42:38,467 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10192 [2019-09-07 23:42:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:42:38,641 INFO L225 Difference]: With dead ends: 31264 [2019-09-07 23:42:38,641 INFO L226 Difference]: Without dead ends: 20756 [2019-09-07 23:42:38,681 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 47 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-07 23:42:38,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20756 states. [2019-09-07 23:42:39,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20756 to 20756. [2019-09-07 23:42:39,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20756 states. [2019-09-07 23:42:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20756 states to 20756 states and 40354 transitions. [2019-09-07 23:42:39,456 INFO L78 Accepts]: Start accepts. Automaton has 20756 states and 40354 transitions. Word has length 10192 [2019-09-07 23:42:39,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:42:39,475 INFO L475 AbstractCegarLoop]: Abstraction has 20756 states and 40354 transitions. [2019-09-07 23:42:39,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-07 23:42:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 20756 states and 40354 transitions. [2019-09-07 23:42:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10202 [2019-09-07 23:42:40,489 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:42:40,493 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:42:40,494 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:42:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:42:40,498 INFO L82 PathProgramCache]: Analyzing trace with hash -695512688, now seen corresponding path program 1 times [2019-09-07 23:42:40,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:42:40,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:42:40,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:42:40,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:42:40,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:42:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:43:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:43:13,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:43:13,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-07 23:43:13,791 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-07 23:43:13,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-07 23:43:13,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-07 23:43:13,792 INFO L87 Difference]: Start difference. First operand 20756 states and 40354 transitions. Second operand 5 states. [2019-09-07 23:44:28,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:44:28,069 INFO L93 Difference]: Finished difference Result 63355 states and 123175 transitions. [2019-09-07 23:44:28,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:44:28,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10201 [2019-09-07 23:44:28,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:44:28,262 INFO L225 Difference]: With dead ends: 63355 [2019-09-07 23:44:28,263 INFO L226 Difference]: Without dead ends: 42605 [2019-09-07 23:44:28,325 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-07 23:44:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42605 states. [2019-09-07 23:44:29,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42605 to 42326. [2019-09-07 23:44:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42326 states. [2019-09-07 23:44:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42326 states to 42326 states and 72775 transitions. [2019-09-07 23:44:29,839 INFO L78 Accepts]: Start accepts. Automaton has 42326 states and 72775 transitions. Word has length 10201 [2019-09-07 23:44:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:44:29,841 INFO L475 AbstractCegarLoop]: Abstraction has 42326 states and 72775 transitions. [2019-09-07 23:44:29,841 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-07 23:44:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 42326 states and 72775 transitions. [2019-09-07 23:44:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10205 [2019-09-07 23:44:33,850 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:44:33,856 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:44:33,857 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:44:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:44:33,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1223614934, now seen corresponding path program 1 times [2019-09-07 23:44:33,862 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:44:33,862 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:44:33,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:44:33,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:44:33,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:44:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:45:17,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:45:17,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 23:45:17,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-07 23:45:17,091 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-07 23:45:17,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-07 23:45:17,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-07 23:45:17,092 INFO L87 Difference]: Start difference. First operand 42326 states and 72775 transitions. Second operand 6 states. [2019-09-07 23:46:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:46:44,089 INFO L93 Difference]: Finished difference Result 130482 states and 228494 transitions. [2019-09-07 23:46:44,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-07 23:46:44,089 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10204 [2019-09-07 23:46:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:46:44,321 INFO L225 Difference]: With dead ends: 130482 [2019-09-07 23:46:44,321 INFO L226 Difference]: Without dead ends: 88162 [2019-09-07 23:46:44,398 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-07 23:46:44,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88162 states. [2019-09-07 23:46:46,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88162 to 87056. [2019-09-07 23:46:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87056 states. [2019-09-07 23:46:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87056 states to 87056 states and 146985 transitions. [2019-09-07 23:46:46,525 INFO L78 Accepts]: Start accepts. Automaton has 87056 states and 146985 transitions. Word has length 10204 [2019-09-07 23:46:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 23:46:46,528 INFO L475 AbstractCegarLoop]: Abstraction has 87056 states and 146985 transitions. [2019-09-07 23:46:46,528 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-07 23:46:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 87056 states and 146985 transitions. [2019-09-07 23:46:50,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10210 [2019-09-07 23:46:50,695 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 23:46:50,700 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 23:46:50,700 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 23:46:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 23:46:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1019257180, now seen corresponding path program 1 times [2019-09-07 23:46:50,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 23:46:50,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 23:46:50,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:46:50,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:46:50,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 23:46:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:47:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-07 23:47:25,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 23:47:25,658 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 23:47:25,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 23:47:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 23:47:28,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 12350 conjuncts, 94 conjunts are in the unsatisfiable core [2019-09-07 23:47:29,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 23:48:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-07 23:48:27,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 23:48:27,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2019-09-07 23:48:27,105 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 23:48:27,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 23:48:27,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-07 23:48:27,106 INFO L87 Difference]: Start difference. First operand 87056 states and 146985 transitions. Second operand 7 states. [2019-09-07 23:51:01,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 23:51:01,682 INFO L93 Difference]: Finished difference Result 361094 states and 659613 transitions. [2019-09-07 23:51:01,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-07 23:51:01,683 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10209 [2019-09-07 23:51:01,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 23:51:02,984 INFO L225 Difference]: With dead ends: 361094 [2019-09-07 23:51:02,985 INFO L226 Difference]: Without dead ends: 274044 [2019-09-07 23:51:03,198 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10232 GetRequests, 10218 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-09-07 23:51:03,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274044 states. [2019-09-07 23:51:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274044 to 273996. [2019-09-07 23:51:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273996 states.